Michael C Hillman
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Advances in Computational Fluid-Structure Interaction and Flow Simulation

11/15/2016

 
My book chapter "An Implicit Gradient Meshfree Formulation for Convection-Dominated Problems" in Advances in Computational Fluid-Structure Interaction and Flow Simulation is now published and is available online:

​http://link.springer.com/chapter/10.1007/978-3-319-40827-9_3

Meshfree approximations are ideal for the gradient-type stabilized Petrov–Galerkin methods used for solving Eulerian conservation laws due to their ability to achieve arbitrary smoothness, however, the gradient terms are computationally demanding for meshfree methods. To address this issue, a stabilization technique that avoids high order differentiation of meshfree shape functions is introduced by employing implicit gradients under the reproducing kernel approximation framework. The modification to the standard approximation introduces virtually no additional computational cost, and its implementation is simple. The effectiveness of the proposed method is demonstrated in several benchmark problems.

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